Lights stuck on red - how long do you wait?

[FMOB]

So the traffic lights are on a never-ending red, how long do you wait before deciding they are broken and you should drive through them?

[FMOB]

xx99xx said:

Time of day? Volume of traffic? What kind of junction/roundabout? Temp or perm lights?

9pm saturday night, light traffic, crossroads, perm lights working normally except the one controlling the direction I was travelling in. All other directions had traffic flow working normally as you could follow the sequencing and watch vehicles driving through the junction.